Two major waves from last year to the first half of this year:
1. From 52510 to 110000, an increase of 110000-52510 = 57,490 points
2. Then from 110000 to a pullback of 74457, this pullback's major wave decline is 110000-74457 = 35,543 points
The decline of the pullback / the increase of the previous major upward wave gives a coefficient:
35543/57490 = 0.618, again 0.618!
